@difizen/mana-app/es/tree/tree-selection.js

import { TreeNode } from "./tree";

/**
 * The tree selection service.
 */
export var TreeSelectionService = Symbol('TreeSelectionService');

/**
 * Representation of a tree selection.
 */
export var TreeSelection;
(function (_TreeSelection) {
  var SelectionType = /*#__PURE__*/function (SelectionType) {
    SelectionType[SelectionType["DEFAULT"] = 0] = "DEFAULT";
    SelectionType[SelectionType["TOGGLE"] = 1] = "TOGGLE";
    SelectionType[SelectionType["RANGE"] = 2] = "RANGE";
    return SelectionType;
  }({});
  _TreeSelection.SelectionType = SelectionType;
  function is(arg) {
    return !!arg && 'node' in arg;
  }
  _TreeSelection.is = is;
  function isRange(arg) {
    return isSelectionTypeOf(arg, SelectionType.RANGE);
  }
  _TreeSelection.isRange = isRange;
  function isToggle(arg) {
    return isSelectionTypeOf(arg, SelectionType.TOGGLE);
  }
  _TreeSelection.isToggle = isToggle;
  // eslint-disable-next-line no-inner-declarations
  function isSelectionTypeOf(arg, expected) {
    if (arg === undefined) {
      return false;
    }
    var type = typeof arg === 'number' ? arg : arg.type;
    return type === expected;
  }
})(TreeSelection || (TreeSelection = {}));
/**
 * A selectable tree node.
 */
export var SelectableTreeNode;
(function (_SelectableTreeNode) {
  function is(node) {
    return !!node && 'selected' in node;
  }
  _SelectableTreeNode.is = is;
  function isSelected(node) {
    return is(node) && node.selected;
  }
  _SelectableTreeNode.isSelected = isSelected;
  function hasFocus(node) {
    return is(node) && node.focus === true;
  }
  _SelectableTreeNode.hasFocus = hasFocus;
  function isVisible(node) {
    return is(node) && TreeNode.isVisible(node);
  }
  _SelectableTreeNode.isVisible = isVisible;
  function getVisibleParent(node) {
    if (node) {
      if (isVisible(node.parent)) {
        return node.parent;
      }
      return getVisibleParent(node.parent);
    }
    return undefined;
  }
  _SelectableTreeNode.getVisibleParent = getVisibleParent;
})(SelectableTreeNode || (SelectableTreeNode = {}));